max-merge 1

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --max-merge 1 -o "{o}" -
14 11558.48 kbps 0.9996329277140698 98.7956731049336 11.96 fps
18 6649.74 kbps 0.9993238346266391 98.55886379116983 13.97 fps
22 4181.17 kbps 0.9987464393879601 98.11261726521126 15.69 fps
26 2748.27 kbps 0.9975835378561847 97.17133507445189 17.5 fps

max-merge 2

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --max-merge 2 -o "{o}" -
14 11441.63 kbps 0.9996310728047386 98.79479054306378 11.42 fps
18 6573.02 kbps 0.9993223280184664 98.5581362326977 13.55 fps
22 4139.02 kbps 0.998746081464617 98.10519579093614 15.2 fps
26 2712.86 kbps 0.9975835997732503 97.15588161052676 16.85 fps

max-merge 3

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --max-merge 3 -o "{o}" -
14 11432.93 kbps 0.9996313705448616 98.79407737594552 11.02 fps
18 6566.47 kbps 0.9993227858321845 98.55635387645603 13.19 fps
22 4140.64 kbps 0.9987467996677191 98.10413561907617 14.97 fps
26 2720.22 kbps 0.9975837847020722 97.16102693935036 16.68 fps

max-merge 4

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --max-merge 4 -o "{o}" -
14 11431.11 kbps 0.999631917869385 98.79345664933479 10.7 fps
18 6564.37 kbps 0.9993231706367003 98.55700056520008 12.8 fps
22 4145.17 kbps 0.9987473101958274 98.10759730480628 14.56 fps
26 2716.51 kbps 0.9975844041336076 97.1614786630508 16.27 fps

max-merge 5

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --max-merge 5 -o "{o}" -
14 11431.53 kbps 0.9996322420892376 98.79510184414981 10.5 fps
18 6572.87 kbps 0.999323563576945 98.55905775979545 12.64 fps
22 4145.5 kbps 0.9987476867036926 98.10913708471668 14.42 fps
26 2720.87 kbps 0.9975856253690264 97.16465594362329 15.92 fps